BBC confirms that the Call the Midwife prequel series, titled “Sisters in Arms,” has begun filming. Multiple outlets report that the program is set in the 1930s and follows events in wartime Poplar, building on the franchise’s established setting and character-led focus. The coverage says the series has now released further details on its title and cast, including a major role for a well-known Coronation Street actor. Other reports also mention additional performers joining as guest stars, with Julie Hesmondhalgh listed among the guest cast in some coverage.
Several sources characterize the production as a spin-off/prequel that expands the storyline beyond the main series timeline, while remaining connected to familiar elements from Call the Midwife. BBC announcements are presented as the primary confirmation for the series title and that filming has started, while other outlets add reported casting information and contextual details about the setting and time period. The reports collectively indicate the project is moving from announcement to production as the cast is assembled for the new installment.
